Okay so I broke my stem today and i believe it may be a 55mm. Im interested in buying the S&M challenger stem or the S&M credence turtleneck stem, but it comes in a 49mm and 52mm. I just started landing bunny hop barspins and i don't want it to be any harder than it already is. So please tell me what your thoughts are on it. The only problem i have with barspins is the front end is always hitting the ground first, so i don't want to get a stem that increases the chances of that happening even more, you know?